\begin{table}

\caption{}
\centering
\begin{tabular}[t]{lrrrrrr}
\toprule
\multicolumn{1}{c}{ } & \multicolumn{2}{c}{control (N=358)} & \multicolumn{2}{c}{treatment (N=374)} & \multicolumn{2}{c}{ } \\
\cmidrule(l{3pt}r{3pt}){2-3} \cmidrule(l{3pt}r{3pt}){4-5}
  & Mean & Std. Dev. & Mean & Std. Dev. & Diff. in Means & p\\
\midrule
Age & 2.27 & 0.92 & 2.26 & 0.94 & -0.01 & 0.90\\
Gender & 1.30 & 0.46 & 1.30 & 0.46 & -0.01 & 0.82\\
Education & 4.62 & 1.00 & 4.63 & 1.00 & 0.02 & 0.82\\
Interest in Politics & 2.84 & 0.74 & 2.80 & 0.76 & -0.03 & 0.55\\
Ideology Self & 5.27 & 3.17 & 5.40 & 3.25 & 0.12 & 0.60\\
Polarization Candidates & 6.70 & 3.54 & 6.75 & 3.44 & 0.04 & 0.87\\
WP:Daily time & 6.81 & 1.34 & 6.88 & 1.29 & 0.07 & 0.48\\
WP:Frequency Politics & 4.49 & 2.14 & 4.39 & 2.11 & -0.10 & 0.53\\
WP:Frequency News & 3.32 & 2.04 & 3.33 & 1.93 & 0.01 & 0.96\\
WP:Frequency Family & 1.84 & 0.94 & 1.89 & 0.89 & 0.05 & 0.48\\
WP:Frequency Images about Politics & 3.75 & 1.97 & 3.69 & 1.90 & -0.06 & 0.68\\
N Active Social Media Apps & 4.01 & 1.25 & 3.91 & 1.32 & -0.10 & 0.30\\
Duration Pre-treatment & 30.52 & 308.33 & 8.64 & 19.19 & -21.88 & 0.18\\
Omnibus Test: & F-Statistics = 0.45, p-values = 0.96 &  &  &  &  & \\
\bottomrule
\end{tabular}
\end{table}
